Combined guitar and synthesizer keyboard



FIG. 1 is a front elevational view of a combined guitar and synthesizer keyboard showing my new design.

FIG. 2 is a top plan view.

FIG. 3 is a right side elevational view.

FIG. 4 is a rear elevational view.

FIG. 5 is a left side elevational view.

FIG. 6 is a bottom plan view; and

FIG. 7 is a fragmentary front perspective view of a portion of the neck of the combined guitar and synthesizer keyboard. 

The ornamental design for a combined guitar and synthesizer keyboard, as shown and described. 